663
CDUS45 KTFX 210835
CLIHLN
CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
135 AM MST SUN DEC 21 2025
...............................
..THE HELENA MT CLIMATE SUMMARY FOR DECEMBER 20 2025
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1866 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 39 254 PM 55 1900 31 8 51
MINIMUM 22 1159 PM -25 1990 13 9 24
AVERAGE 31 22 9 38
PRECIPITATION (IN)
YESTERDAY 0.00 0.28 2017 0.02 -0.02 0.00
MONTH TO DATE 0.66 0.30 0.36 0.22
SINCE OCT 1 2.47 1.67 0.80 0.68
SINCE JAN 1 13.69 11.24 2.45 9.73
SNOWFALL (IN)
YESTERDAY 0.0 2.9 1964 0.3 -0.3 0.0
2017
MONTH TO DATE 0.9 4.8 -3.9 1.7
SINCE DEC 1 0.9 4.8 -3.9 1.7
SINCE JUL 1 8.1 13.5 -5.4 4.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 34 43 -9 27
MONTH TO DATE 520 813 -293 600
SINCE DEC 1 520 813 -293 600
SINCE JUL 1 1992 2655 -663 1983
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 467 433 34 590
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 33 HIGHEST WIND DIRECTION SW (240)
HIGHEST GUST SPEED 50 HIGHEST GUST DIRECTION W (260)
AVERAGE WIND SPEED 10.2
SKY COVER
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 62 1100 PM
LOWEST 30 100 PM
AVERAGE 46
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THE HELENA MT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 31 60 1933
MINIMUM TEMPERATURE (F) 13 -32 1990
SUNRISE AND SUNSET
DECEMBER 21 2025......SUNRISE 809 AM MST SUNSET 443 PM MST
DECEMBER 22 2025......SUNRISE 810 AM MST SUNSET 444 PM MST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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